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LAIS MINCHILLO: Hello.

My name is Lais.

I'm a software engineer in the WebView team in London,

是伦敦WebView团队的一名软件工程师

and I'm here to talk about our AndroidX library, AndroidX

今天我要讲讲AndroidX库

AndroidX WebKit

它是什么？

AndroidX WebKit is a library in Jetpack.

AndroidX WebKit是Jetpack中的一种库

Jetpack is a [? suite ?] of libraries, tools, and guidance

Jetpack是一组库、工具和指南

to help developers write high quality apps easier.

它可以帮助开发者更轻松地编写高品质应用

AndroidX libraries are independent from the platform

AndroidX库独立于平台

This means that they are updated more frequently.

这意味着它可以更频繁地更新

They also offer backwards compatibility.

它还提供向后兼容性

In our case, APIs work back all the way to L Plus devices.

就Android而言 API可以向后一直兼容到L+设备

That seems great.

这看起来很棒

But why should you care?

不过与我们有什么关系？

WebView has dozens of APIs introduced after Lollipop.

在Lollipop之后 WebView推出了数十种API

By using our AndroidX library, you can use all these APIs

利用AndroidX库您可以使用所有这些API

and target older devices as well.

并覆盖更老的设备

Let's say you want to use an API from SDK 28, which

比如，您想用SDK 28（即Android Pie）

is Android Pie.

If using the framework API, you only target roughly 10%

如果使用框架API，只能覆盖大约10%的

If using the AndroidX WebKit API, you target almost 90%

如果使用AndroidX WebKit API 则可以涵盖几乎90%的

You can check out the full documentation

您可以查看完整文档

on how to use AndroidX or how to migrate an existing

了解如何使用AndroidX 或如何将现有项目迁移至AndroidX

project to AndroidX in JetPack's AndroidX Overview, linked here.

详见JetPack的“AndroidX概览” 这里提供了链接

For WebKit specifically, you want

to add this line in your apps build.gradle file.

您需要在应用的build.gradle文件中添加这行代码

Our current stable release is 1.0.0,

我们当前的稳定版本是1.0.0

and our current release candidate is 1.1.0-rc.01.

当前的候选版本为1.1.0-rc.01

No matter what kind of method you're swapping,

无论您要交换哪种方法

first replace the version check for a feature check.

都要先为功能检查替换版本检查

To swap static methods, simply replace

要交换静态方法，只需使用

WebView with WebViewCompat and you're done.

WebViewCompat替换WebView即可

To swap out non-static methods, replace your WebView object

要交换非静态方法，请使用WebViewCompat

with WebViewCompat, then pass your WebView object

替换WebView对象然后将WebView对象作为

as the first parameter.

第一个参数传递

即可完成交换

Let's talk about some of our most recent APIs.

下面来讨论我们最新的一些API

Dark Mode-- we are introducing new API

深色模式，我们推出了新的API

to control Dark Mode in your WebViews.

用于在WebView中控制深色模式

There are three modes--

它有三种模式

Off, which means your content will never

一是“关闭”，此时内容不会变成深色

be dark, On, which means your content will always be dark,

一是“打开”，此时内容将保持深色

and Auto, which means it's going to follow system settings.

一是“自动”，此时将遵循系统设置

This allows app developers to choose if the content should

这样，应用开发者就可以选择将内容

be light or dark.

显示为浅色还是深色

This snippet shows you how to query current Force

这段代码展示了如何查询当前的

Dark settings or change it.

ForceDark设置或进行更改

Remember to guard these calls with the feature check.

不要忘了使用功能检查来保护这些调用

It's as simple as calling getForceDark, passing

相关操作很简单，只需要调用getForceDark

in the WebView settings, or calling setForceDark,

在WebView设置中传递，或调用setForceDark

passing the WebView settings and the setting you want.

传递WebView设置以及您想要的设置

Improving on the framework APIs, we

我们还在框架API的基础上做了改进

are adding new methods for developers

为开发者添加了新的方法

to choose how the content will be darkened.

用于选择如何调暗内容

There are three strategies to choose from.

具体有三种策略可选

User agent only-- content will be darkened by a user agent

“仅用户代理”，内容将由用户代理调暗

and the page historic theme will be ignored if it exists.

如果页面有历史主题，将被忽略

Web theme only-- content will be darkened by the dark theme

“仅Web主题” 内容将由页面提供的深色主题

provided by the page.

If the page doesn't have one, content

如果页面没有深色主题

will be rendered with the default theme.

内容将使用默认主题渲染

Prefer web theme over user agent--

“Web主题优先于用户代理”

content will be darkened by the dark theme provided

内容将由页面提供的深色主题调暗

by the page, or if the page doesn't have one,

如果页面没有深色主题

content will be darkened by a user agent.

内容将由用户代理调暗

This snippet shows you how to get or set

这段代码展示如何使用

the Force Dark strategy with the three options

刚才介绍的三种选项来获取或设置

we discussed before.

Force Dark策略

Here are some examples of what a WebView looks

这些示例展示了关闭或打开深色模式时

like with Dark Mode off or on.

WebView的外观

Proxy Controller APIs allow you to override Android proxy

通过代理控制器API，您可以替换应用中

settings for all the WebViews in your app.

所有WebView的Android代理设置

You can set multiple proxy and bypass rules

您可以设置多个代理和旁路规则

and also specify whether these apply to http, https, or both.

并指定这些规则是适用于http、https，还是两者均适用

This snippet shows you how to use Proxy Controller.

这段代码展示了如何使用代理控制器

First get an instance to the ProxyController.

首先，获取ProxyController的实例

Then create a ProxyConfig object.

然后，创建ProxyConfig对象

You can add as many proxy rules or bypass rules as you need.

您可以根据需要添加任意数量的代理规则或旁路规则

Note that the order of the rules matter.

注意，规则的顺序很重要

When loading a URL, the first proxy rule

加载网址时，将会使用与该网址匹配的

that matches that URL will be used.

第一个代理规则

If any URLs match a bypass rule, then it

如有任何网址匹配旁路规则

will be loaded directly instead.

则直接加载该网址

In case you want to clear these settings, just

要清除这些设置

call clearProxyOverride.

只需调用clearProxyOverride

It's important to note that both these methods are asynchronous,

务必注意，这两种方法是异步的

so you might want to pass in a listener

因此，您可能需要使用监听器

to know exactly when the settings were applied.

来准确了解何时应用了这些设置

Asset loader is a helper class to load local assets,

资产加载器是一种辅助程序类，可加载

resources, or files.

本地资产、资源或文件

This doesn't have any Chromium dependency,

它不存在任何Chromium依赖项

which means unlike other APIs discussed here,

因此不像这里讨论的其他API

you don't have to guard these calls with a feature check.

无需使用功能检查来保护这些调用

Asset Loader allows you to securely integrate

通过资产加载器，您可以安全地

local content in your app with web content.

集成应用中的本地内容和Web内容

Always use a domain you have full control

请务必使用您拥有完全控制权的域

over or the default domain reserved for this.

或为此保留的默认网域

This snippet shows how to load an asset.

这段代码展示如何加载资产

First create an assetLoader.

首先，创建assetLoader

Then override shouldInterceptRequest

然后，在WebView客户端中

in your WebView client and call into assetLoaders

替换shouldInterceptRequest 并调用assetLoader

shouldInterceptRequest.

shouldInterceptRequest

Then load an asset concatenating the domain,

再加载连接网域的资产

in this example, the default one, and its path.

在本例中，为默认资产及其路径

What else is coming into 1.1.0?

1.1.0还有哪些功能？

Tracing Controller, that helps collect

跟踪控制器，它可以帮您收集

tracing information for debugging,

调试时的跟踪信息

and Render Process, that enables you to control WebView's Render

还有渲染进程您可以通过它控制WebView的

Process starting in Android 0.

渲染进程，适用于Android O及更高版本

Thank you for listening.

感谢您观看

Stay tuned for more stuff coming into AndroidX WebKit.

请关注AndroidX WebKit的更多动态

Check out our documentation on Android Developers,

查看Android Developers上的相关文档

and if you have any questions, reach out to android webview

如果有任何问题，请联系

[email protected].

[email protected]

[MUSIC PLAYING]

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